SEM feather melanosomes (IMAGE) University College Cork Caption False colour scanning electron microscopy image of zebrafinch feather showing the feather cortex (in blue) and melanosomes (melanin-rich granules, in orange). Scale bar indicates 1 µm. Credit Pic Dr Tiffany Slater. Usage Restrictions None License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.